8149818671 has 4 divisors (see below), whose sum is σ = 8208450600. Its totient is φ = 8091186744.

The previous prime is 8149818667. The next prime is 8149818821. The reversal of 8149818671 is 1768189418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1768189418 = 2 ⋅884094709.

It is a cyclic number.

It is not a de Polignac number, because 8149818671 - 2² = 8149818667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8149818601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29315756 + ... + 29316033.

It is an arithmetic number, because the mean of its divisors is an integer number (2052112650).

Almost surely, 2^8149818671 is an apocalyptic number.

8149818671 is a deficient number, since it is larger than the sum of its proper divisors (58631929).

8149818671 is a wasteful number, since it uses less digits than its factorization.

8149818671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58631928.

The product of its digits is 774144, while the sum is 53.

The square root of 8149818671 is about 90276.3461323064. The cubic root of 8149818671 is about 2012.4077538881.

The spelling of 8149818671 in words is "eight billion, one hundred forty-nine million, eight hundred eighteen thousand, six hundred seventy-one".